AMD Radeon RX 7800 XT vs AMD Radeon R7 340 OEM

VS

AMD Radeon RX 7800 XT

AMD Radeon R7 340 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 2GB VRAM Radeon R7 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 8 years and 3 months late

Boost Clock has increased by 212% (2430MHz vs 780MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (624.1GB/s vs 64.00GB/s)

3456 additional rendering cores

AMD Radeon R7 340 OEM 's Advantages

Lower TDP (50W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +6130%

37.32 TFLOPS

Radeon R7 340 OEM

0.599 TFLOPS

Radeon RX 7800 XT

VS

Radeon R7 340 OEM

Graphics Card

Aug 2023

Release Date

May 2015

Navi III

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1295 MHz

Base Clock

730 MHz

2430 MHz

Boost Clock

780 MHz

2438 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

624.1GB/s

Bandwidth

64.00GB/s

Render Config

60

Compute Units

6

-

3840

Shading Units

384

240

TMUs

24

96

ROPs

8

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

6.240 GPixel/s

583.2 GTexel/s

Texture Rate

18.72 GTexel/s

74.65 TFLOPS

FP16 (half)

-

37.32 TFLOPS

FP32 (float)

599.0 GFLOPS

1166 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

263W

TDP

50W

600 W

Suggested PSU

250 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

Oland

Navi 32 XT (215-180000006)

GPU Variant

-

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

0.95 billion

346 mm²

Die Size

77 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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